Answer:
A and B.
Explanation:
Hope this helps a little bit.
The PERIMETER of the equator cycle is about 40,000Km. The Greenwich cycle is a bit shorter as the earth is a bit an ellipsoid. About 37,000Km by Google Maps. The distance on the envelope between ANY antipodes (=opposite points on the axis, I won't use "diameter" to avoid confusion) is HALF the perimeter (If you walk the whole perimeter long, you'd get to the same point, of course). The distance through Earth is
D=P/Pi=37,000Km/Pi=about11777Km
Because, like shaking your head yes or no, it is understood by everyone, regardless of region or country.
Answer:
Thermal (Heat) Energy. Thermal energy is created from the vibration of atoms...
Chemical Energy. Chemical energy is stored in the bonds of atoms and molecules – it is the energy...
Nuclear Energy. Nuclear energy is stored in the nucleus of atoms.
Explanation:
The challenges range from terrorism and violent extremism, to piracy, political instability, elections-related violence, drug trafficking or deadly viruses.
